Wrench.



M. G. ALBANAKI.

WRENCH.

APPLIUATION FILED JULY 2p. 190s.

913,346. Patented Feb.23,19o9.

man

1 wmulllll" vio UNITE MITCHELL Gr. ALBANAKI, OF ENID, OKLAHOMA.

WRENCH.

have invented certain new and useful 'im provements in WTrenclies, ofwhich the following is a specification, reference being had to theaccompanying drawings.

This invention relates to improvements in Wrenches, and consists of thenovel features of construction and the combination and arrangement ofparts hereinafter fully described and claimed.

The object of the invention is to provide a simple and practical quickadjustment wrench which will be strong and durable and comparativelyinexpensive.

The above and other objects of the inven tion are attained in itspreferred embodi. ment illustrated in the accompanying drawings, inwhichm l Figure 1 is a side elevation of the improved wrench; Fig. 2 isa view partly in section, the plane of the parts in section beingindicated by the line 2 2 in Fig. 1; Figs. 3 and 4 are detail crosssectional views taken respectively on the planes indicated by the lines3"-3 and 4 4 in Fig. 1; and Fig. 5 is a detail view of the shank of themovable jaw.

The invention comprises a movable jaw 1 fixed upon the outer end of ashank 2 which is slidable in the tubular shank 3 of a co-actingstationary jaw 4l. The jaw, 1 has a squared opening to receive thereduced squared outer end 5 of the movable shank 2; and the stationaryaw a has a similar squared `opening to receive the similarshaped reducedend G of the tubular shank 3. The latter is of cylindrical form and hasits opposite end provided with a stationary handle 7. The shank 2 iscylindrical in shape and externally screw threaded, as shown at 8, toprovide serrations or ratchet teeth for the engagement of the beveledends or teeth 9. of two pivoted dogs 10 carried by the shank 3. Saiddogs 10 are in the form of levers pivoted intermediate their ends onpins 11 in forked outer ends of screw studs 12 which are tapped into theshank 3 at diametrically opposite points. The beveled ends or teeth 9are formed at one end of the dogs Specication of Letters Patent.

Application led July 20, 1908.

Patented Feb. 23, 1909.

Serial No. 444,503.

10 so as to project through oppositely disposed openings 13 formed insaid shank 3 and the opposite ends of said dogs are formed withoutwardly projecting finger pieces or buttons 14. Flat leaf springs 15are secured by screws 16 to the shank 3 and have their free ends bearingagainst the ends 9 of the dogs to press the latter inwardly and intoengagement with the ratchet teeth or screw threads 8. It will be seenthat when the iinger pieces or buttons 14 are pressed inwardly thebeveled ends 9 of the dogs will be disengaged from the ratchet teeth sothat the shank 2 may slide freely in the shank 3 to permit the movablejaw l to be moved toward or from the stationary jaw et.

In order to prevent the shank 2 from rotating and to retain it in theshank 3, it is formed with a longitudinally extending groove 1T toreceive the projecting inner end of a screw stud 18 tapped into theshank 3. The screw stud 18 is arranged in the squared upper end of theshank 3, over which end vthe stationary jaw d is secured so that saidjaw serves to retain the screw in position.

Having thus described my invention what is claimed is:

l. A wrench comprising a tubular shank having' a handle at one end, asquared portion at its opposite end and oppositely disposed aperturesintermediate its ends, a second shank having an externally screwthreaded portion to slide within the tubular shank and formed with alongitudinal groove extending along said threaded portion, a pinarranged in the squared end of the tubular shank and projecting into thegroove in the threaded shank to prevent the latter from rotating, astationary jaw arranged upon the squared end of the tubular shank anddisposed over said pin to retain the latter in said shank, a movable jawupon the outer end of the threaded shank and dogs carried by the tubularshank and projecting through said apertures therein and engaged with thescrew threads of the other shank, substantially as described.

2. The herein described wrench comprising a tubular cylindrical shankhaving a handle at one end, a squared portion at its opposite end andoppositely disposed aper tures intermediate its ends, a stationary jawixed upon the squared end of said shank, a second shank having anexternally screw threaded portion to slide within the tubular shank andalso formed with a longitudinal groove extending along its threadedportion and with a squared outer end, a movable jaw Xed upon the squaredend of the screw threaded. shank, a pin carried by the tubular shank andadapted to project into the groove in the screw threaded shank toprevent the latter from rotating, forked bearings arranged atdiametrically opposite points upon the tubular shank, levers fuloruniedinterinediate their ends in said bearings and formed at their upper orouter ends with outwardly projecting linger pieces and at their lowerAor inner ends with dogs having 15 beveled or V-shaped inner ends, saiddogs being adapted to project through said apertures in the tubularshank and to have their beveled ends engage the screw threads of theother shank, and leaf springs having their lower ends secured to thetubular shank '2 and their upper or free ends bearing upon said dogs toforce them inwardly against the screw threaded shank.

In testimony whereof I hereunto aix my signature in the presence of twowitnesses. 2

MITCHELL G, ALBANAKI.

Titnesses HoMER E. EVANS, JAMES B. ACUFF.

